Finding the Fourth Proportional to 1,609.22, 2,223.80 and 1,162.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,609.22 : 2,223.80 = 1,162.56 : x
2. Step 2: Convert to fraction form
   1,609.22/2,223.80 = 1,162.56/x
3. Step 3: Cross multiply
   1,609.22x = 2,223.80 × 1,162.56
4. Step 4: Simplify right side
   1,609.22x = 2,585,300.93
5. Step 5: Solve for x
   x = 2,585,300.93/1,609.22
6. Step 6: Final answer
   x = 1,606.56